Shoe upper



FIG. 1 is a front perspective view of a shoe upper showing my new design;

FIG. 2 is a side view thereof; and,

FIG. 3 is a rear perspective view thereof.

The broken lines showing the remainder of the shoe represent unclaimed subject matter and form no part of the claimed design. The contrast in shading represents a contrast of appearance only and no specific color, material, or texture is claimed. 

CLAIM The ornamental design for a shoe upper, as shown and described. 